Definition of pelvic fin
: one of the paired fins of a fish that are homologous with the hind limbs of a quadruped
First Known Use of pelvic fin
Rhymes with pelvic fin
bathtub gin, bobby pin, born-again, candlepin, catechin, come again, cotter pin, cotton gin, deadly sin, figure in, firing pin, Ho Chi Minh, listen in, listener-in, Lohengrin, loony bin, lying-in, mandolin, maximin, Mickey Finn, mortal sin, motor inn, ob-gyn, onionskin, palanquin, paper-thin, rejoice in, rolling pin, rooming-in, safety pin, set foot in, thick and thin, Tianjin, underpin, underspin, Vietminh, violin, whipper-in
Seen and Heard
What made you want to look up pelvic fin? Please tell us where you read or heard it (including the quote, if possible).